SECTION 16350

CIRCUIT BREAKER SWITCHGEAR

PART 1 PRODUCTS

SECTION INCLUDES

Circuit breaker switchgear.

REFERENCES

ANSI C39.1 - Requirements for Electrical Analog Indicating Instruments.

ANSI/IEEE 24 - Performance Characteristics and Dimensions for Outdoor Apparatus Bushings.

ANSI/IEEE C12.1 - Code for Electricity Metering.

ANSI/IEEE C37.04 - Standard Rating Structure for AC High Voltage Circuit Breakers Rated on a Symmetrical Current Basis.

ANSI/IEEE C37.06 - Preferred Ratings and Related Required Capabilities for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis.

ANSI/IEEE C37.11 - Requirements for Electrical Control for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis or a Total Current Basis.

ANSI/IEEE C37.12 - Guide to Specifications for AC High-Voltage Circuit Breakers Rated on a Symmetrical Basis and a Total Current Basis.

ANSI/IEEE C37.20 - Standard for Switchgear Assemblies Including Metal-Enclosed Bus.

ANSI/IEEE C57.13 - Requirements for Instrument Transformers.

ANSI Z55.1 - Gray Finishes for Industrial Apparatus and Equipment.

IEEE 48 - Test Procedures and Requirements for High-Voltage AC Cable Terminations.

SUBMITTALS

Submit shop drawings as required by ANSI/IEEE C37.12 under provisions of Section [01300.] [01340.]

Submit product data under provisions of Section [01300.] [01340.]

Submit product data for components and accessories.

[Submit manufacturer's installation instructions under provisions of Section [01300] [01340].]

OPERATION AND MAINTENANCE DATA

Submit manufacturer's operation data under provisions of Section [01700.] [01730.]

Include operating instructions for manually and electrically opening and closing circuit breakers.

Submit maintenance data under provisions of Section [01700.] [01730.]

Include maintenance instructions for cleaning methods, cleaning materials recommended, instructions for circuit breaker removal, replacement, testing and adjustment, and lubrication.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing the products specified in this Section with minimum [three] [_____] years [documented] experience.

DELIVERY, STORAGE, AND HANDLING

Deliver products to site under provisions of Section [01600.] [01610.]

Store and protect products under provisions of Section [01600.] [01620.]

Accept products on site and verify damage.

Protect products from weather and moisture by covering with heavy plastic or canvas and by maintaining heating within enclosure in accordance with manufacturer's instructions.

EXTRA MATERIALS

Submit maintenance materials under provisions of Section [01700.] [01750.]

Submit special tools required to operate and maintain switchgear.

Provide [one] [_____] spare circuit breaker drawout assembly under provisions of Section [01700.] [01750.]

Provide [one] [_____] spare vacuum interrupter units under provisions of Section [01700.] [01750.]

Provide [one] [_____] set of spare control circuit fuses under provisions of Section [01700.] [01750.]

PART 2 PRODUCTS

MANUFACTURERS

[________________________________] Product [____________.]

[________________________________] Product [____________.]

[________________________________] Product [____________.]

Substitutions: Under provisions of Section [01600.] [01630.]

CIRCUIT BREAKER SWITCHGEAR

Circuit Breaker Switchgear: ANSI/IEEE 37.20; metal-clad switchgear assembly including draw-out [air] [vacuum] type circuit breakers in free-standing cubicles[.] [, securely bolted together to form an integrated structure.]

Meet requirements for [usual service conditions.] [unusual service conditions as follows:]

[Maximum] [Minimum] Ambient Temperature: [_____] degrees F([_____] degrees C).

Altitude: [__________] feet ([__________] M).

Meet requirements for use as service disconnecting means.

Meet requirements for equipment installed accessible to the general public.

Other Unusual Service Conditions: [_________________.]

Nominal Voltage: [13.8] [_____] kV, three phase, 60 Hz.

Voltage and Insulation Levels: To ANSI/IEEE C37.20.

Main Bus Ampacity: [1200] [2000] [3000] amperes, continuous.

Momentary Current Rating: To ANSI/IEEE C37.20.

CIRCUIT BREAKERS

Circuit Breaker: ANSI/IEEE C37.04.

Circuit Breaker Operator: Spring-charged stored energy[.] [with electric operator to ANSI/IEEE C37.11.]

Rated Maximum Voltage: [15.0] [_____] kV.

Rated Voltage Range Factor: [1.3.] [_____.]

Rated Frequency: 60 Hz.

Rated Continuous Current: [1200] [2000] [3000] amperes, rms.

Rated Dielectric Strength: [36] [_____] kV rms, low frequency; [95] [_____] kV crest, impulse.

Rated Permissible Tripping Delay: 2 seconds.

Short-Circuit Rating: [18] [28] [37] kA rms, at rated maximum voltage.

Operation Endurance Capability: ANSI/IEEE C37.06.

Rated Control Voltage: [[120] [240] volt, single phase.] [[208Y/120] [240] volt, three phase.]

PROTECTIVE RELAYS AND INSTRUMENTS

Protective Relays: Provide relaying instruments as indicated on Drawings for each circuit breaker.

Current Transformers: ANSI/IEEE C37.20; 5 ampere secondary, [wound] [bushing] [bar or window] type, with [single] [double] secondary winding and secondary shorting device, primary/secondary ration as [required] [shown on Drawings], burden consistent with connected metering and relay devices, 60 Hertz.

Potential Transformers: ANSI/IEEE C57.13; 120 volt [single] [tapped] [double] secondary, disconnecting type with integral fuse mountings, primary/secondary ratio as [required] [shown on Drawings], burden and accuracy consistent with connected metering and relay devices, 60 Hertz.

Ammeters: ANSI C39.1; indicating ammeter with 4.5 inch (115 mm) square recessed case and 250 degree scale, white dial with black figures and pointer, 5 ampere, 60 Hertz movement, 1 percent accuracy.

Voltmeters: ANSI C39.1; indicating voltmeter with 4.5 inch (115 mm) square recessed case and 250 degree scale, white dial with black figures and pointer, 120 volt, 60 Hertz movement, 1 percent accuracy.

Ammeter Transfer Switch: Rotary multistage snap-action type with 600 volt AC-DC silver plated contacts, engraved escutcheon plate, [pistol-grip] [oval type] handle, and four positions including OFF.

Voltmeter Transfer Switch: Rotary multistage snap-action type with 600 volt AC-DC silver plated contacts, engraved escutcheon plate, [pistol-grip] [oval type] handle, and [four] [seven] positions including OFF.

Watt-hour Meters and Wattmeters: ANSI/IEEE C12.1; three phase induction type with two stators, each with current and potential coil, rated 5 amperes and 120 volts at 60 Hertz. Meter suitable for connection to 3- and 4-wire circuits. Include potential indicating lamps; adjustments for light and full load, phase balance, and power factor; four-dial clock register; [integral demand indicator] [contact devices to operate remote impulse-totalizing demand meter]; ratchets to prevent reverse rotation; removable meter with draw-out test plug; semi-flush mounted case with matching cover.

Impulse-Totalizing Demand Meter: ANSI/IEEE C12.1; suitable for use with switchboard watt-hour meter, including two circuit totalizing relay; cyclometer; [four dial totalizing kilowatt-hour register;] positive chart drive mechanism; capillary pen holding minimum one-month ink supply; and a roll chart with minimum 31-day capacity. Indicate and record [five minute] [fifteen minute] [30 minute] [__________] integrated demand of the totalized system.

ACCESSORIES

Surge Arrestors: [Station] [Intermediate] [Distribution] class, rated [_____] kV; mount in incoming line compartment.

Incoming Cable Terminations: [Clamp-type.] [Potheads.] [Roof bushing.]

Roof Bushings: [ANSI/IEEE 24.] [__________________.]

Potheads: [IEEE 48.] [________________________________.]

Space Heaters: For [120] [_____] volt external source, sized by switchgear manufacturer.

Key Interlocks: [_______________________________________.]

Circuit Breaker Lifting Device: [Portable, floor supported, elevating carriage with a roller base, for movement of circuit breakers in and out of switchboard structure.] [Carriage and track on top of each switchboard with lifting device to serve draw-out circuit breakers in switchboard.]

FABRICATION

Construction: [Indoor.] [Outdoor.] [Walk-in.]

Height: [_____] inches, maximum, including auxiliary support members on top and bottom.

Main Bus: [Aluminum.] [Copper.]

Provide for incoming feeder in [__________] cubicle.

FACTORY FINISHES

Clean surfaces before applying paint.

Apply corrosion-resisting primer to all surfaces.

Apply finish coat of [baked enamel] [____________________] paint to [2] [4] [___] mils ([0.5] [1] [___] mm) thick.

Finish Color: [ANSI Z55.1; Type [24 - Dark Gray] [61 -Light Gray] [____________________].] [___________________.]

PART 3 EXECUTION

EXAMINATION

Verify that surfaces are ready to receive work.

Verify field measurements are as [shown on Drawings.] [shown on shop drawings.] [instructed by manufacturer.]

Verify that required utilities are available, in proper location, and ready for use.

Beginning of installation means installer accepts conditions.

INSTALLATION

Install in accordance with manufacturer's instructions.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400.] [01410.]

Visually inspect for physical damage, alignment, and fit.

Perform mechanical operator tests in accordance with manufacturer's instructions.

Verify key interlock operation.

Test protective relays to determine pickup parameters on each operating element. Verify accuracy of timing setting for three points on time dial curve. Make final settings as [directed.] [shown on Drawings.]

Trip each circuit breaker by operating protective relays.

Measure minimum pick-up voltage of each trip and close coil.

Perform insulation resistance test on each phase to ground and from each phase to each other phase. Record results.

Perform insulation resistance test at 1000 volts DC on control wiring, except circuits connected to solid-state components.

Perform overpotential test to ANSI/IEEE C37.20.

Perform contact resistance test across each contact; report any contact resistance in excess of 500 microohms.

Test arc chutes for watts loss in accordance with manufacturer's instructions.

END OF SECTION